/* Windspellers — SCADA design tokens */
:root {
  color-scheme: dark;
  --ground: #0B0F14;
  --panel: #111821;
  --panel-deep: #0E141B;
  --panel-hover: #16202B;
  --line: #1F2A36;
  --line-strong: #2A3846;
  --text: #E6EDF3;
  --text-body: #D3DCE5;
  --text-soft: #A9B6C2;
  --text-muted: #8D9AA8;
  --accent: #F2A33A;   /* signal amber */
  --status: #5CC8E8;   /* "online" cyan */
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --sans: 'IBM Plex Sans', system-ui, sans-serif;
  --max: 1240px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background-color: var(--ground);
  background-image:
    linear-gradient(rgba(92,200,232,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(92,200,232,0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
}
a { color: var(--text); text-decoration: none; }
a:hover { color: var(--accent); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.mono { font-family: var(--mono); }
.wrap { max-width: var(--max); margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: rgba(11,15,20,0.92); }
.site-header .wrap { padding-top: 16px; padding-bottom: 16px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.wordmark { font-family: var(--mono); font-weight: 600; font-size: 18px; letter-spacing: 0.14em; }
.nav { display: flex; flex-wrap: wrap; gap: 8px; font-family: var(--mono); font-size: 13px; letter-spacing: 0.06em; }
.nav a { padding: 10px 14px; border: 1px solid var(--line); color: var(--text-muted); min-height: 44px; display: inline-flex; align-items: center; gap: 6px; }
.nav a.active { border-color: var(--accent); color: var(--accent); }
.nav a:hover { color: var(--text); }
.nav .soon { font-size: 10px; color: var(--status); }
.header-right { display: flex; align-items: center; gap: 16px; }
.sys { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 12px; color: var(--status); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--status); display: inline-block; }
.dot.off { background: transparent; border: 1px solid var(--text-muted); }
.btn { display: inline-flex; align-items: center; min-height: 44px; padding: 0 18px; background: var(--accent); color: var(--ground); font-weight: 600; font-size: 14px; border: 0; cursor: pointer; }
.btn:hover { color: var(--ground); filter: brightness(1.08); }

/* Hero */
.hero { padding-top: 88px; padding-bottom: 56px; }
.eyebrow { font-family: var(--mono); font-size: 13px; letter-spacing: 0.12em; color: var(--accent); margin-bottom: 20px; }
.hero h1 { margin: 0; font-size: clamp(38px, 6vw, 64px); line-height: 1.05; font-weight: 700; letter-spacing: -0.02em; max-width: 880px; }
.lead { margin: 24px 0 0; font-size: 20px; line-height: 1.6; color: var(--text-soft); max-width: 720px; }
.search { margin-top: 40px; display: flex; flex-wrap: wrap; max-width: 680px; }
.search-field { flex: 1 1 320px; display: flex; align-items: center; gap: 12px; padding: 0 16px; background: var(--panel); border: 1px solid var(--line-strong); min-height: 56px; }
.search-field input { flex: 1; min-width: 0; background: transparent; border: 0; outline: none; color: var(--text); font-family: var(--mono); font-size: 15px; min-height: 52px; }
.search-field input::placeholder { color: var(--text-muted); }
.search .btn { min-height: 58px; padding: 0 24px; font-family: var(--mono); letter-spacing: 0.08em; }
.search-empty { margin-top: 16px; font-family: var(--mono); font-size: 13px; color: var(--text-muted); }

.readouts { margin-top: 48px; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); max-width: 880px; }
.readout { background: var(--panel-deep); padding: 18px 20px; }
.readout .label { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; color: var(--text-muted); }
.readout .value { font-family: var(--mono); font-size: 18px; font-weight: 500; margin-top: 12px; }
.readout .value.big { font-size: 32px; margin-top: 6px; }

/* Chapters */
.section-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--line); padding-bottom: 16px; margin-bottom: 32px; }
.section-head h2 { margin: 0; font-size: 28px; font-weight: 600; }
.section-head .meta { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--text-muted); }
.chapters { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr)); gap: 24px; padding-bottom: 72px; }
.tile { background: var(--panel); border: 1px solid var(--line); display: flex; flex-direction: column; }
.tile-head { padding: 20px 24px 16px; border-bottom: 1px solid var(--line); }
.tile-code { display: flex; justify-content: space-between; align-items: center; font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--accent); }
.tile-status { display: flex; align-items: center; gap: 6px; color: var(--status); }
.tile h3 { margin: 12px 0 6px; font-size: 22px; font-weight: 600; }
.tile .sub { font-family: var(--mono); font-size: 12px; color: var(--text-muted); }
.list { list-style: none; margin: 0; padding: 8px 0; }
.list a { display: flex; gap: 14px; padding: 10px 24px; font-size: 15px; line-height: 1.45; min-height: 44px; }
.list a:hover { background: var(--panel-hover); }
.list .num { font-family: var(--mono); color: var(--text-muted); font-size: 13px; padding-top: 2px; flex: none; }
.list .draft { font-family: var(--mono); font-size: 10px; color: var(--text-muted); border: 1px solid var(--line-strong); padding: 1px 6px; margin-left: auto; align-self: flex-start; flex: none; }
.list a.current { color: var(--accent); background: var(--panel-hover); }
.list a.current .num { color: var(--accent); }

.stages { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 24px; padding-bottom: 88px; }
.stage { border: 1px dashed var(--line-strong); padding: 28px; background: rgba(17,24,33,0.6); }
.stage .code { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--status); }
.stage h3 { margin: 12px 0 8px; font-size: 22px; font-weight: 600; }
.stage p { margin: 0; font-size: 16px; line-height: 1.6; color: var(--text-soft); }

/* Article */
.crumbs { padding-top: 40px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--text-muted); display: flex; flex-wrap: wrap; gap: 10px; }
.crumbs a { color: var(--text-muted); }
.crumbs .here { color: var(--text); }
.article-head { padding-top: 48px; padding-bottom: 40px; border-bottom: 1px solid var(--line); }
.article-head h1 { margin: 0; font-size: clamp(34px, 5vw, 56px); line-height: 1.08; font-weight: 700; letter-spacing: -0.02em; max-width: 900px; }
.tags { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 8px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; }
.tags span { padding: 8px 12px; border: 1px solid var(--line-strong); color: var(--text-soft); }
.tags span.warn { border-color: var(--accent); color: var(--accent); }
.article-body { padding-top: 48px; padding-bottom: 72px; display: flex; flex-wrap: wrap; gap: 56px; align-items: flex-start; }
.prose { flex: 999 1 560px; min-width: 0; max-width: 740px; font-size: 18px; line-height: 1.75; color: var(--text-body); }
.prose p { margin: 0 0 24px; }
.prose > p:first-child { font-size: 22px; line-height: 1.6; color: var(--text); }
.prose h2 { font-size: 26px; line-height: 1.3; color: var(--text); margin: 48px 0 16px; }
.prose h3 { font-size: 20px; color: var(--text); margin: 36px 0 12px; }
.prose ul, .prose ol { margin: 0 0 24px; padding-left: 24px; }
.prose li { margin-bottom: 8px; }
.prose strong { color: var(--text); }
.prose .table-wrap { overflow-x: auto; margin: 0 0 24px; border: 1px solid var(--line-strong); }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.5; }
.prose th { text-align: left; font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); background: var(--panel); padding: 12px 16px; border-bottom: 1px solid var(--line-strong); }
.prose td { padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose tr:last-child td { border-bottom: 0; }
.prose ul ul, .prose ol ul { margin: 12px 0 0; }
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.prose a.next, .prose a.prev { text-decoration: none; }
.prose a.prev:hover { color: var(--accent); }
.prose blockquote { margin: 40px 0; border: 1px solid var(--line-strong); background: var(--panel); padding: 0; }
.prose blockquote::before { content: "// REALITY CHECK"; display: block; padding: 12px 20px; border-bottom: 1px solid var(--line-strong); font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--accent); }
.prose blockquote p { margin: 0; padding: 20px 24px; color: var(--text); }
.prose blockquote p + p { padding-top: 0; }
.pending { border: 1px dashed var(--line-strong); background: rgba(17,24,33,0.6); padding: 28px; }
.pending .code { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--status); }
.pending p { margin: 12px 0 0; color: var(--text-soft); font-size: 17px; }

.next { margin-top: 56px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; padding: 24px 28px; border: 1px solid var(--accent); background: var(--panel); }
.next .k { display: block; font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--accent); }
.next .t { display: block; margin-top: 8px; font-size: 22px; font-weight: 600; color: var(--text); }
.next svg { color: var(--accent); flex: none; }
.prev { margin-top: 16px; display: inline-block; font-family: var(--mono); font-size: 13px; color: var(--text-muted); }

.aside { flex: 1 1 300px; min-width: 0; display: flex; flex-direction: column; gap: 24px; }
.box { border: 1px solid var(--line); background: var(--panel); }
.box-head { padding: 14px 20px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; }
.box-head.cyan { color: var(--status); }
.box-head .acc { color: var(--accent); }
.box-head .muted { color: var(--text-muted); }
.data { margin: 0; padding: 8px 20px 16px; font-size: 15px; }
.data div { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.data div:last-child { border-bottom: 0; }
.data dt { color: var(--text-muted); }
.data dd { margin: 0; font-family: var(--mono); text-align: right; }
.aside .list a { gap: 12px; padding: 9px 20px; font-size: 14px; }
.aside .list .num { font-size: 12px; }
.aside .stage { padding: 20px; }
.aside .stage h3 { font-size: 18px; margin: 8px 0 4px; }
.aside .stage p { font-size: 14px; }

/* Simple pages */
.page { padding-top: 72px; padding-bottom: 88px; max-width: 760px; }
.page h1 { margin: 0 0 24px; font-size: clamp(34px, 5vw, 52px); line-height: 1.1; letter-spacing: -0.02em; }
.page h2 { margin: 40px 0 12px; font-size: 22px; }
.page p, .page li { font-size: 18px; line-height: 1.7; color: var(--text-body); }
.page .note { font-family: var(--mono); font-size: 13px; color: var(--text-muted); border: 1px dashed var(--line-strong); padding: 16px 20px; margin-top: 32px; }

/* Jobs */
.jobs { display: grid; gap: 16px; padding-bottom: 88px; }
.job { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 24px; background: var(--panel); border: 1px solid var(--line); padding: 20px 24px; }
.job h3 { margin: 0; font-size: 20px; }
.job .co { color: var(--text-soft); font-size: 15px; margin-top: 4px; }
.job .meta { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 8px; font-family: var(--mono); font-size: 12px; }
.job .meta span { padding: 6px 10px; border: 1px solid var(--line-strong); color: var(--text-soft); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: var(--ground); }
.site-footer .wrap { padding-top: 32px; padding-bottom: 32px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; font-family: var(--mono); font-size: 13px; color: var(--text-muted); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 20px; }
.site-footer a { color: var(--text-muted); }
.site-footer a:hover { color: var(--accent); }

@media (max-width: 640px) {
  .hero { padding-top: 56px; }
  .header-right .sys { display: none; }
  .prose { font-size: 17px; }
  .prose > p:first-child { font-size: 20px; }
}

/* Support */
.support-line { margin-top: 48px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 24px; padding: 20px 24px; border: 1px dashed var(--line-strong); background: rgba(17,24,33,0.6); }
.support-line p { margin: 0; flex: 1 1 320px; font-size: 16px; line-height: 1.6; color: var(--text-soft); }
.support-line .k { display: block; margin-bottom: 4px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--accent); }
.prose .support-line a.btn { color: var(--ground); text-decoration: none; }
.btn-big { min-height: 52px; padding: 0 28px; font-size: 16px; }
.support-cta { margin-top: 32px; }
.support-note { font-family: var(--mono); font-size: 13px !important; color: var(--text-muted) !important; }
.supporters { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 220px), 1fr)); gap: 12px; }
.supporters li { border: 1px solid var(--line); background: var(--panel); padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; }
.supporters .name { font-family: var(--mono); font-size: 15px; color: var(--text); }
.supporters .note { font-size: 13px; color: var(--text-muted); }
.supporters-empty { border: 1px dashed var(--line-strong); padding: 20px 24px; background: rgba(17,24,33,0.6); }
.supporters-empty .code { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; color: var(--status); }
.supporters-empty p { margin: 8px 0 0; }